CN110473744A - A kind of DC relay carrying out arc extinguishing based on magnet steel - Google Patents
A kind of DC relay carrying out arc extinguishing based on magnet steel Download PDFInfo
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- CN110473744A CN110473744A CN201910734447.4A CN201910734447A CN110473744A CN 110473744 A CN110473744 A CN 110473744A CN 201910734447 A CN201910734447 A CN 201910734447A CN 110473744 A CN110473744 A CN 110473744A
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- magnet steel
- blocks
- arc extinguishing
- movable contact
- sound
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 290
- 239000010959 steel Substances 0.000 title claims abstract description 290
- 239000000919 ceramic Substances 0.000 claims abstract description 68
- 230000003068 static effect Effects 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000037361 pathway Effects 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 claims description 6
- 238000001465 metallisation Methods 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 241000216843 Ursus arctos horribilis Species 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 20
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 14
- 238000012545 processing Methods 0.000 description 12
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 241001046947 Ectropis obliqua Species 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of DC relays that arc extinguishing is carried out based on magnet steel, including ceramic shield, static contact, movable contact spring, yoke plate, metal frame piece, insulating base and several blocks of magnet steel；Several magnet steel are arranged respectively at the beside corresponding to sound contact of movable contact spring, realize arc extinguishing to be formed by magnetic field using magnet steel；Insulating base is on yoke plate, insulating base is equipped with wall and saddle, saddle cooperates under the bottom end of ceramic shield, saddle is equipped with groove, the sealing ring of an elastically deformable is embedded in groove, the deformed part of sealing ring extends respectively along the gap between the bottom face in gap and ceramic shield and the saddle of insulating base between the inner wall of ceramic shield and the wall of insulating base.The present invention can be obstructed effectively using sealing ring and form metal pathway between the splatter object of ceramic shield inner wall attachment and the metal of ceramic shield bottom face due to magnet steel carries out arc extinguishing, to promote insulation performance.
Description
Technical field
The present invention relates to a kind of DC relays, more particularly to a kind of DC relay for carrying out arc extinguishing based on magnet steel.
Background technique
Existing DC relay mostly uses greatly movable contact spring Direct Action Type (also referred to as solenoid Direct Action Type) scheme, contact portion
It is divided to using two static contacts and a movable contact spring, two static contacts are normally mounted at the top of ceramic shield, two static contacts
Bottom end then reaches in ceramic shield, movable contact spring be Direct Action Type be distributed in ceramic shield, the both ends of movable contact spring respectively with two static contacts
It matches, when the both ends of movable contact spring are in contact with two static contacts, electric current is flowed by one of static contact, by movable contact spring
It is flowed out afterwards from another static contact；Movable contact spring is installed in one end of rod member, the other end of rod member then with magnetic circuit
Partial dynamic iron core is connected, when coil access electric current and when moving upwards rod member, movable contact spring both ends and two it is quiet
Contact is in contact respectively, connects load, and when coil turn-off current, rod member is moved downward by the effect of reset spring,
Movable contact spring both ends mutually separate respectively with two static contacts, cutting load.When this DC relay is applied to hyperbaric environment, need
Magnet steel is configured near contact to realize arc extinguishing, therefore often has the operating condition of breaking arc in practical applications, and arc energy
It measures high, is easy ablation contact and causes contact surface in molten condition, form liquid metal under magnet steel magneticaction and splash, most
Metal pathway is formed in later period in service life ceramic shield inner wall eventually, leads to defective insulation.In order to solve this technical problem, such as scheme
1, shown in Fig. 2, Fig. 1 is the cross-sectional view of the partial structurtes of the DC relay of the prior art, and Fig. 2 is that signal is amplified in the portion A in Fig. 1
Figure；This DC relay of the prior art can install insulating base 200, yoke additional in the spark chamber formed based on ceramic shield 100
Iron plate 300 is fixed on the bottom end of ceramic shield 100 by metal frame piece 400, and insulating base 200 is typically housed on yoke plate 300, with
Splashing metal is isolated, achievees the purpose that protection insulation；But this DC relay of the prior art, due to insulating base 200
It there are gap between 100 inner wall of ceramic shield, can not play the role of completely isolated, metal steam shot that magnet steel arc extinguishing generates is still
It can so fall into gap, be formed between the metal for 100 bottom face of splatter object and ceramic shield for adhering to 100 inner wall of ceramic shield
Metal pathway leads to defective insulation.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, provides a kind of direct current relay that arc extinguishing is carried out based on magnet steel
Device is improved by structure, can effectively obstruct ceramic shield inner wall attachment splatter object and ceramic shield bottom face metal it
Between form metal pathway, to promote insulation performance.
The technical solution adopted by the present invention to solve the technical problems is: a kind of direct current relay carrying out arc extinguishing based on magnet steel
Device, including ceramic shield, static contact, movable contact spring, yoke plate, metal frame piece, insulating base and several blocks of magnet steel；Ceramic shield passes through bottom end
Metalization layer mutually fixed with metal frame piece, bottom end and the yoke plate of metal frame piece are mutually fixed；Two static contacts are separately fixed at
The top of ceramic shield is simultaneously contained in stationary contact set by its bottom end in the cavity of ceramic shield；Movable contact spring is straight piece type, movable contact spring
Both ends set by movable contact be respectively fitting into below two static contacts in the cavity；Several blocks of magnet steel are respectively configured
At the beside corresponding to sound contact of movable contact spring, arc extinguishing is realized to be formed by magnetic field using magnet steel；The insulation
Seat is protruded upward in the edge of insulating base equipped with wall, the edge of insulating base is additionally provided with convex to horizontal direction on yoke plate
Saddle stretching and around entire periphery, the saddle of insulating base cooperate under the bottom end of ceramic shield；In the platform of the saddle of insulating base
It is additionally provided with the groove around entire periphery on face, the sealing ring of an elastically deformable is embedded in groove, in the bottom end of ceramic shield
When face pressure is to sealing ring, sealing ring is allowed to be deformed, the inner wall and insulating base of the deformed part of sealing ring respectively along ceramic shield
Wall between gap and ceramic shield bottom face and insulating base saddle between gap extend, so as to obstruct because of magnetic
Steel carries out arc extinguishing and forms metal pathway in the splatter object of ceramic shield inner wall attachment and the metal of ceramic shield bottom face.
Several blocks of magnet steel are four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at corresponding to for the both sides of the width of movable contact spring
The position of sound contact, and the magnetic pole for corresponding to the one side towards sound contact of two blocks of magnet steel of same a pair of of sound contact is set as
On the contrary, and the magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel on same one side of the width corresponding to movable contact spring
It is set as identical, is also connected with yoke folder corresponding between two blocks of magnet steel with a pair of of sound contact；Four blocks of magnet steel difference
Configuration is at the position of face sound contact.
In four blocks of magnet steel, two blocks of magnet steel on the left side of the direction of current flow corresponding to movable contact spring towards corresponding
The magnetic pole of one side of sound contact be set as the pole N.
Several blocks of magnet steel are four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at pair on the both sides of the width of movable contact spring
Should be in the position of sound contact, and correspond to the magnetic pole of the one side towards sound contact of two blocks of magnet steel of same a pair of of sound contact
It is set as identical, is also connected with yoke folder corresponding between two blocks of magnet steel with a pair of of sound contact；Four blocks of magnet steel difference
Configuration is at the position of face sound contact.
In four blocks of magnet steel, two blocks of magnet steel on same one side of the width corresponding to movable contact spring towards corresponding sound
The magnetic pole of the one side of contact is set as identical.
In four blocks of magnet steel, two blocks of magnet steel on same one side of the width corresponding to movable contact spring towards corresponding sound
The magnetic pole of the one side of contact is set as opposite.
Several blocks of magnet steel are four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at pair on the both sides of the width of movable contact spring
Should be in the position of sound contact, and correspond to the magnetic pole of the one side towards sound contact of two blocks of magnet steel of same a pair of of sound contact
It is set as on the contrary, and corresponding to the one sides towards corresponding sound contact of two blocks of magnet steel on same one side of the width of movable contact spring
Magnetic pole is also set as on the contrary, being also connected with yoke folder corresponding between two blocks of magnet steel with a pair of of sound contact.
It is described to correspond to two blocks of magnet steel with a pair of of sound contact, it is to be located at relative to described with the inclined of a pair of of sound contact
Seated position, and two blocks of magnet steel are to be dislocatedly distributed.
Several blocks of magnet steel are two blocks of magnet steel, the correspondence outside the both ends for the length that two blocks of magnet steel are arranged respectively at movable contact spring
Magnetic pole in the position of sound contact, and the opposite one side of two blocks of magnet steel is set as opposite；Two blocks of magnet steel are also connected with two
Yoke folder, two yoke folders also include at least the yoke for being in the position corresponding to sound contact on the both sides of width of movable contact spring
Section；Two blocks of magnet steel are arranged respectively at the position of face sound contact.
Yoke folder be it is U-shaped, the U-shaped bottom wall of two yokes folder is opposite with two blocks of magnet steel respectively to be connected on one side,
The end of the U-shaped two sidewalls of two yokes folder respectively constitutes corresponding yoke section.
Yoke folder be it is U-shaped, the U-shaped bottom wall of two yokes folder is opposite with two blocks of magnet steel respectively to be connected on one side,
The end of the U-shaped two sidewalls of two yokes folder is more than the position corresponding to sound contact on the both sides of the width of movable contact spring respectively
It sets；It include the yoke section in the U-shaped two sidewalls of described two yoke folders.
Yoke folder be it is U-shaped, the U-shaped bottom wall of two yokes folder fits in the both sides of the width of movable contact spring respectively, two
The end of the U-shaped two sidewalls of a yoke folder is connected with two pieces of the opposite of magnet steel on one side respectively.
Several blocks of magnet steel are two blocks of magnet steel, and two blocks of magnet steel are arranged respectively at pair on the both sides of the width of movable contact spring
Should be in the position of sound contact, and sound contact corresponding to two blocks of magnet steel is not identical；Two blocks of magnet steel are also respectively connected with
One yoke folder, two yoke folders are respectively L-type, the sound contact backwards for being connected to corresponding magnet steel on one side of the L-type of yoke folder
One side, the another side of L-type of yoke folder is in the position outside the both ends corresponding to the length of movable contact spring；Two blocks of magnet steel point
It is positioned respectively at the position of face sound contact.
The magnetic pole of the one side towards sound contact of two blocks of magnet steel is set as identical.
The magnetic pole of the one side towards sound contact of two blocks of magnet steel is set as opposite.
The circle of the long groove for being slightly less than insulating base of the circle of the sealing ring is long, so that sealing ring elasticity is stretched in the groove
In.
The insulating base further includes bottom plate, and the wall is located in the edge of bottom plate, to be surrounded by the wall and bottom plate
One arc extinguishing cavity, and the projection of static contact and movable contact spring on insulating base is allowed to be in the arc extinguishing cavity.
The wall is full packet shape, which is surrounded on the entire periphery of insulating base.
The wall is two and half packet shapes, and two sections of walls of half packet shape are in two ends corresponding to movable contact spring respectively
The outside of the projected position in portion.
It is additionally provided with structure of grid in the arc extinguishing cavity, to increase arc extinguishing size and creepage distance.
Structure of grid in the arc extinguishing cavity includes the outer for being in the projected position at the both ends corresponding to movable contact spring
The first structure of grid, the height of first structure of grid is greater than the height of the wall.
The edge of corresponding end of the top of first structure of grid close to movable contact spring, and the first structure of grid is half
Packet shape.
Structure of grid in the arc extinguishing cavity further includes be between first structure of grid and the wall
The length direction of two structure of grid, the second structure of grid approximately along the movable contact spring is arranged, the height of second structure of grid
It spends roughly the same with the height of the wall.
In the ceramic shield, at the position of inner sidewall, the both sides of the length direction corresponding to movable contact spring are respectively equipped with use
The limit ribs that movable contact spring deviates during up and down motion to the both sides of width are limited, the limit ribs protrude out to described
The edge of first structure of grid, to be used to stop electric arc.
Compared with prior art, the beneficial effects of the present invention are:
1, several blocks of magnet steel are arranged respectively at the side corresponding to sound contact of movable contact spring due to using by the present invention
At position, arc extinguishing is realized to be formed by magnetic field using magnet steel；And it is equipped on the table top of the saddle of insulating base around entire
The groove on periphery, be embedded in the sealing ring of an elastically deformable in groove, in this way can be in the bottom face and insulating base of ceramic shield
When saddle matches, sealing ring is pressed to, sealing ring is allowed to be deformed, the inner wall of the deformed part of sealing ring respectively along ceramic shield
Gap between the bottom face in gap and ceramic shield and the saddle of insulating base between the wall of insulating base extends, if thus
When the arc extinguishing magnetic field of dry block magnet steel composition carries out arc extinguishing, gold due to magnet steel carries out arc extinguishing in the attachment of ceramic shield inner wall can be obstructed
The metal for belonging to splash and ceramic shield bottom face forms metal pathway, to promote insulation performance.
2, insulating base is designed to arc extinguishing cavity due to using by the present invention, and structure of grid is equipped in arc extinguishing cavity,
Arc extinguishing magnetic circuit can be increased and act on the size that lower electric arc elongates, the height dimension of DC relay is effectively saved, reduce volume.
3, the present invention is due to using the tip designs of the first structure of grid into the corresponding end close to movable contact spring
Edge, and the first structure of grid is half packet shape, and the limit ribs of ceramic shield inner sidewall are designed to protrude out to described the
The edge of one structure of grid, so as to be used to stop electric arc.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But one kind of the invention be based on magnet steel into
The DC relay of row arc extinguishing is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the partial structurtes of the DC relay with insulating base of the prior art；
Fig. 2 is the portion the A enlarged diagram in Fig. 1；
Fig. 3 is the schematic diagram of the local structure of the embodiment of the present invention one；
Fig. 4 is the magnet steel distribution schematic diagram of the embodiment of the present invention one；
Fig. 5 is the cross-sectional view of the part-structure of the embodiment of the present invention one；
Fig. 6 is the decomposition diagram of the sub-assembly of ceramic shield of the invention, insulating base, metal frame piece and yoke plate；
Fig. 7 is the portion the B enlarged diagram in Fig. 5；
Fig. 8 is the D structure schematic diagram of the insulating base of the embodiment of the present invention one；
Fig. 9 is the cross-sectional view of the insulating base of the embodiment of the present invention one；
Figure 10 is that the sealing ring of the embodiment of the present invention one is packed into the cross-sectional view of insulating base；
Figure 11 is the ceramic shield equipped with static contact of the embodiment of the present invention one and the structure sectional view that insulating base matches；
Figure 12 is the magnet steel distribution schematic diagram of the embodiment of the present invention two；
Figure 13 is the magnet steel distribution schematic diagram of the embodiment of the present invention three；
Figure 14 is the magnet steel distribution schematic diagram of the embodiment of the present invention four；
Figure 15 is the magnet steel distribution schematic diagram of the embodiment of the present invention five；
Figure 16 is the magnet steel distribution schematic diagram of the embodiment of the present invention six；
Figure 17 is the D structure schematic diagram of the insulating base of the embodiment of the present invention six；
Figure 18 is the cross-sectional view of the insulating base of the embodiment of the present invention six；
Figure 19 is that the sealing ring of the embodiment of the present invention six is packed into the cross-sectional view of insulating base；
Figure 20 is the ceramic shield equipped with static contact of the embodiment of the present invention seven and the structure sectional view that insulating base matches；
Figure 21 is the magnet steel distribution schematic diagram of the embodiment of the present invention eight；
Figure 22 is the magnet steel distribution schematic diagram of the embodiment of the present invention nine；
Figure 23 is the magnet steel distribution schematic diagram of the embodiment of the present invention ten；
Figure 24 is the magnet steel distribution schematic diagram of the embodiment of the present invention 11；
Figure 25 is the magnet steel distribution schematic diagram of the embodiment of the present invention 12；
Figure 26 is the magnet steel distribution schematic diagram of the embodiment of the present invention 13；
Figure 27 is the magnet steel distribution schematic diagram of the embodiment of the present invention 14；
Figure 28 is the magnet steel distribution schematic diagram of the embodiment of the present invention 15.
Specific embodiment
Embodiment one
Referring to shown in Fig. 3 to Figure 11, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, including ceramic shield
1, static contact 2, movable contact spring 3, yoke plate 4, metal frame piece 5, insulating base 6 and several blocks of magnet steel 81；Ceramic shield 1 is shroud-like structure,
Opening down, the bottom face of ceramic shield 1 is equipped with metalization layer, and ceramic shield 1 is mutually solid by metalization layer and the upper end of metal frame piece 5
Fixed, lower end and 4 phase of yoke plate of metal frame piece 5 are fixed, and surround a cavity 11 by ceramic shield 1, metal frame piece 5, yoke plate 4；
Two static contacts 2 are separately fixed at the top (i.e. roof) of ceramic shield 1 and stationary contact set by the bottom end of static contact 2 are made to protrude into institute
It states in cavity 11；Movable contact spring 3 is straight piece type, and movable contact set by the both ends of movable contact spring 3 is respectively fitting into the cavity 11
Two 2 lower sections of static contact, i.e., the both ends of movable contact spring 3 are matched with the bottom end of two static contacts 2 respectively；Movable contact spring 3, which is installed in, to be pushed away
The top of rod part 7, the bottom of rod member 7 pass through yoke plate 4 and are connected with the dynamic iron core of magnetic circuit part；Several blocks of magnetic
Steel 81 is arranged respectively at the beside corresponding to sound contact (i.e. corresponding movable contact and stationary contact) of movable contact spring 3,
Arc extinguishing is realized to be formed by magnetic field using magnet steel；In the present embodiment, several magnet steel 81 are four blocks of magnet steel, and four blocks of magnet steel 81 are in
The outside of ceramic shield 1, four blocks of magnet steel 81 are arranged respectively at the (i.e. corresponding corresponding to sound contact of the both sides of the width of movable contact spring
Movable contact and stationary contact) position, and correspond to two blocks of magnet steel 81 with a pair of of sound contact towards the one of sound contact
The magnetic pole in face be set as on the contrary, and correspond to movable contact spring width same one side two blocks of magnet steel 81 towards corresponding sound touch
The magnetic pole of the one side of point is set as identical, is also connected with yoke folder 82 corresponding between two blocks of magnet steel with a pair of of sound contact；
In the present embodiment, as shown in figure 4, left side static contact 2 is electric current inflow, the right static contact 2 is electric current outflow, then in movable contact spring 3,
Electric current is by flowing to the other end close to the right static contact 2 close to this one end of left side static contact 2, and four blocks of magnet steel 81 are respectively configured
At the position of face sound contact；As shown in figure 4, in four blocks of magnet steel 81, a left side for the direction of current flow corresponding to movable contact spring
The magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel 81 on side is set as the pole N, the electric current stream corresponding to movable contact spring
The magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel 81 on the right in dynamic direction is set as the pole S；Yoke folder 82 is big
Cause into it is U-shaped, outside the end of the corresponding end at the both ends of the corresponding length in movable contact spring 3 of the U-shaped bottom wall of yoke folder 82, yoke folder 82
U-shaped two sidewalls are connected to the back side corresponding to sound contact for corresponding to two blocks of magnet steel 81 with a pair of of sound contact；
The insulating base 6 is protruded upward in the edge of insulating base 6 equipped with wall 61, the edge of insulating base 6 is also set on yoke plate 4
Saddle 62 that oriented horizontal direction protrudes out and around entire periphery, the saddle 62 of insulating base 6 cooperate in the bottom end of ceramic shield 1
Under；The groove 63 around entire periphery is additionally provided on the table top of the saddle 62 of insulating base 6, insertion one can elasticity change in groove 63
The sealing ring 64 of shape when pressing to sealing ring 64 with the bottom face in ceramic shield 1, allows sealing ring 64 to be deformed, sealing ring 64
A part 641 of deformation extends along the gap between the inner wall of ceramic shield 1 and the wall 61 of insulating base, the deformation of sealing ring 64
Another part 642 along between the bottom face 12 of ceramic shield 1 and the saddle 62 of insulating base gap extend, so as to obstruct
It is logical that metal is formed in the splatter object of ceramic shield inner wall attachment and the metal of ceramic shield bottom face 12 due to magnet steel carries out arc extinguishing
Road.
In the present embodiment, the insulating base 6 further includes bottom plate 65, and the wall 61 is located in the edge of bottom plate 65, with by
The wall 61 and bottom plate 65 surround an arc extinguishing cavity 66, and the projection of static contact 2 and movable contact spring 3 on insulating base is allowed to be in institute
It states in arc extinguishing cavity.Bottom plate 65 is equipped with the through-hole 651 that at least rod member 7 can be allowed to pass through.
In the present embodiment, the wall 61 is two and half packet shapes, and two sections of walls 61 of half packet shape are in correspondence respectively
In the outside of the projected position of two ends of movable contact spring 3.
In the present embodiment, it is additionally provided with structure of grid in the arc extinguishing cavity 66, to increase arc extinguishing size and creepage distance.
In the present embodiment, the structure of grid in the arc extinguishing cavity includes the projection for being in the both ends corresponding to movable contact spring
First structure of grid 67 of the outer of position, the height of first structure of grid 67 are greater than the height of the wall.
In the present embodiment, the edge of corresponding end of the top of first structure of grid 67 close to movable contact spring 3, and the
One structure of grid 67 is half packet shape.
In the present embodiment, the structure of grid in the arc extinguishing cavity further include be in first structure of grid 67 with it is described
The length direction of the second structure of grid 68 between wall 61, the second structure of grid 68 approximately along the movable contact spring 3 is arranged, institute
The height for stating the second structure of grid 68 is roughly the same with the height of the wall 61.
In the present embodiment, in the ceramic shield 1, at the position of inner sidewall, two of the length direction corresponding to movable contact spring
While being respectively equipped with the limit ribs 13 deviated during up and down motion to the both sides of width for limiting movable contact spring 3.
In the present embodiment, four blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Fig. 4
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is that will not generate interference between each other towards outside.
The DC relay of the present embodiment, load polarized requirement, forward and reverse arc extinguishing capacity variance is larger, works as Opposite direction connection
When, the direction of two magnetic blow-out power will can influence each other towards inside.
A kind of DC relay being carried out arc extinguishing based on magnet steel of the invention, is arranged respectively at using by four blocks of magnet steel 81
The position corresponding to sound contact on the both sides of the width of movable contact spring 3, and correspond to two blocks of magnet steel 81 with a pair of of sound contact
The magnetic pole of one side towards sound contact be set as on the contrary, and corresponding to two blocks of magnet steel 81 on same one side of the width of movable contact spring
Be set as identical towards the magnetic pole of the one side of corresponding sound contact, correspond to a pair of of sound contact two blocks of magnet steel 81 it
Between be also connected with a yoke folder 82；And the groove 63 around entire periphery, groove are equipped on the table top of the saddle 62 of insulating base 6
The sealing ring 64 of an elastically deformable is embedded in 63, it in this way can be in 62 phase of saddle of the bottom face 12 and insulating base of ceramic shield 1
When cooperation, press to sealing ring 64, sealing ring 64 allowed to be deformed, the deformed part of sealing ring respectively along ceramic shield inner wall with
Gap between the bottom face in gap and ceramic shield and the saddle of insulating base between the wall of insulating base extends, thus at four pieces
When the arc extinguishing magnetic field that magnet steel 81 forms carries out arc extinguishing, metal due to magnet steel carries out arc extinguishing in the attachment of ceramic shield inner wall can be obstructed
Metal pathway is formed between splash and the metal of ceramic shield bottom face, to promote insulation performance.
A kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, is designed to spark chamber using by insulating base 6
Body 66, and structure of grid is equipped in arc extinguishing cavity 66, it is possible to increase arc extinguishing magnetic circuit acts on the size that lower electric arc elongates, and effectively saves
The height dimension of DC relay reduces volume.
Embodiment two
A kind of DC relay carrying out arc extinguishing based on magnet steel shown in Figure 12, of the invention, not with embodiment one
It is with place, four blocks of magnet steel 81 are arranged respectively at the (i.e. corresponding corresponding to sound contact of the both sides of the width of movable contact spring
Movable contact and stationary contact) position, and correspond to the one side towards sound contact of two blocks of magnet steel 81 with a pair of of sound contact
Magnetic pole be set as identical, be also connected with yoke folder 82 corresponding between two blocks of magnet steel 81 with a pair of of sound contact；Such as Figure 12
Shown, in four blocks of magnet steel 81, two blocks of magnet steel 81 on same one side of the width corresponding to movable contact spring 3 are touched towards corresponding sound
The magnetic pole of the one side of point is set as identical, that is, in four blocks of magnet steel 81, two pieces of the left side of the direction of current flow corresponding to movable contact spring
The magnetic pole of the one side towards corresponding sound contact of magnet steel 81 is set as the pole N, the direction of current flow corresponding to movable contact spring
The magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel 81 on the right is also set as the pole N；Yoke folder 82 is substantially at U
Type, outside the end of the corresponding end at the both ends of the corresponding length in movable contact spring 3 of the U-shaped bottom wall of yoke folder 82, yoke folder 82 it is U-shaped
Two sidewalls are connected to the back side corresponding to sound contact for corresponding to two blocks of magnet steel 81 with a pair of of sound contact；
In the present embodiment, four blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 12
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is that will not generate interference between each other towards outside (i.e. oblique upper in Figure 12).
The DC relay of the present embodiment loads no polar requirement, and forward and reverse arc extinguishing ability is suitable, works as Opposite direction connection
When, the direction of two magnetic blow-out power is that will not influence each other towards outside (i.e. obliquely downward).
Embodiment three
A kind of DC relay carrying out arc extinguishing based on magnet steel shown in Figure 13, of the invention, not with embodiment two
Be with place, in four blocks of magnet steel 81, two blocks of magnet steel 81 on the left side of the direction of current flow corresponding to movable contact spring towards phase
The magnetic pole of the one side of corresponding sound contact is set as the pole S, two blocks of magnet steel on the right of the direction of current flow corresponding to movable contact spring
The magnetic pole of 81 one side towards corresponding sound contact is also set as the pole S；Four blocks of magnet steel 81 and two yoke folders 82 match
The magnetic blow-out power in the direction as shown in arrow in Figure 13 can be formed by being formed by magnetic field, and the magnetic blow-out power of both direction is dynamic to two pairs respectively
Stationary contact carries out arc extinguishing processing, since the direction of magnetic blow-out power is towards outside (i.e. obliquely downward in Figure 13), between each other not
Interference can be generated.
Example IV
A kind of DC relay carrying out arc extinguishing based on magnet steel shown in Figure 14, of the invention, not with embodiment two
Be with place, in four blocks of magnet steel 81, two blocks of magnet steel 81 on same one side of the width corresponding to movable contact spring towards corresponding
The magnetic pole of the one side of sound contact is set as opposite；That is, in four blocks of magnet steel 81, two blocks of magnet steel 81 corresponding to left side sound contact
It is set as the pole N towards the magnetic pole of the one side of corresponding sound contact, the direction of two blocks of magnet steel 81 corresponding to the right sound contact
The magnetic pole of the one side of corresponding sound contact is set as the pole S；In this way, corresponding to two blocks of magnet steel 81 on the left side of the width of movable contact spring
The one side towards corresponding sound contact magnetic pole be set as on the contrary, correspond to movable contact spring width the right two blocks of magnet steel
The magnetic pole of 81 one side towards corresponding sound contact is also set as opposite.Four blocks of magnet steel 81 and two yoke folders 82 match
The magnetic blow-out power in the direction as shown in arrow in Figure 14 can be formed by being formed by magnetic field, and the magnetic blow-out power of both direction is dynamic to two pairs respectively
Stationary contact carries out arc extinguishing processing, since the direction of magnetic blow-out power is towards outside (left side obliquely, the right towards obliquely downward), phase
Interference will not be generated between mutually.
Embodiment five
A kind of DC relay carrying out arc extinguishing based on magnet steel shown in Figure 15, of the invention, not with embodiment two
Be with place, in four blocks of magnet steel 81, two blocks of magnet steel 81 on same one side of the width corresponding to movable contact spring towards corresponding
The magnetic pole of the one side of sound contact is set as opposite；That is, in four blocks of magnet steel 81, two blocks of magnet steel 81 corresponding to left side sound contact
It is set as the pole S towards the magnetic pole of the one side of corresponding sound contact, the direction of two blocks of magnet steel 81 corresponding to the right sound contact
The magnetic pole of the one side of corresponding sound contact is set as the pole N；In this way, corresponding to two blocks of magnet steel 81 on the left side of the width of movable contact spring
The one side towards corresponding sound contact magnetic pole be set as on the contrary, correspond to movable contact spring width the right two blocks of magnet steel
The magnetic pole of 81 one side towards corresponding sound contact is also set as opposite.Four blocks of magnet steel 81 and two yoke folders 82 match
The magnetic blow-out power in direction as shown by the arrow in fig. 15 can be formed by being formed by magnetic field, and the magnetic blow-out power of both direction is dynamic to two pairs respectively
Stationary contact carries out arc extinguishing processing, since the direction of magnetic blow-out power is towards outside (towards obliquely downward, the right is obliquely on the left side), phase
Interference will not be generated between mutually.
Embodiment six
Referring to shown in Figure 16 to Figure 19, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, with embodiment
One the difference is that, four blocks of magnet steel 81 be arranged respectively at the both sides of the width of movable contact spring 3 correspond to sound contact (i.e. phase
Corresponding movable contact and stationary contact) position, and correspond to two blocks of magnet steel 81 with a pair of of sound contact towards sound contact
One side magnetic pole be set as on the contrary, and correspond to same one side of the width of movable contact spring 3 two blocks of magnet steel 81 towards corresponding
The magnetic pole of the one side of sound contact is also set as on the contrary, being also connected with one corresponding between two blocks of magnet steel 81 with a pair of of sound contact
Yoke folder 82；As shown in figure 16, in four blocks of magnet steel 81, in two blocks of magnet steel 81 on the left side of the direction of current flow of movable contact spring,
Magnetic pole close to the one side towards corresponding sound contact of the magnet steel 81 of 2 this side of left side static contact is set as the pole N, close to right
The magnetic pole of the one side towards corresponding sound contact of the magnet steel 81 of 2 this side of side static contact is set as the pole S, in the electricity of movable contact spring
In two blocks of magnet steel 81 for flowing the right of flow direction, the magnet steel 81 of close 2 this side of left side static contact is moved towards corresponding
The magnetic pole of the one side of stationary contact is set as the pole S, close to 2 this side of the right static contact magnet steel 81 towards corresponding sound contact
The magnetic pole of one side be set as the pole N；It corresponding to two blocks of magnet steel 81 of same a pair of of sound contact, is located at relative to described with a pair of dynamic
The offset position of stationary contact, and two blocks of magnet steel 81 are to be dislocatedly distributed；Yoke folder 82 is substantially at U-shaped, the U-shaped bottom wall of yoke folder 72
Outside the end of the corresponding end at the both ends of the corresponding length in movable contact spring 3, the U-shaped two sidewalls of yoke folder 82, which are connected to, to be corresponded to
With the back side corresponding to sound contact of two blocks of magnet steel 81 of a pair of sound contact；
In the present embodiment, the wall 61 is full packet shape, which is surrounded on the entire periphery of insulating base.
In the present embodiment, four blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Fig. 4
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is that will not generate interference between each other towards equidirectional oblique upper.
The DC relay of the present embodiment loads no polar requirement, and forward and reverse arc extinguishing ability is suitable, works as Opposite direction connection
When, the direction of two magnetic blow-out power is that will not influence each other towards equidirectional obliquely downward.
A kind of DC relay that arc extinguishing is carried out based on magnet steel of the invention, due in two magnetic blow-out power, one of the right
Magnetic blow-out power is directed toward middle section position, and therefore, wall 61 uses full packet shape, is convenient for arc extinguishing.
Embodiment seven
A kind of DC relay carrying out arc extinguishing based on magnet steel shown in Figure 20, of the invention, not with embodiment six
It is with place, wall 61 is two and half packet shapes, and two sections of walls 61 of half packet shape are in two corresponding to movable contact spring 3 respectively
The outside of the projected position of a end；And the length in the ceramic shield 1, at the position of inner sidewall, corresponding to movable contact spring
The both sides in direction are respectively equipped with the limit ribs 13 deviated during up and down motion to the both sides of width for limiting movable contact spring,
The limit ribs 13 protrude out to the edge of first structure of grid 67.
The present embodiment is due to being designed to two and half packet shapes for wall 61, that is to say, that intermediate region does not have wall 61, because
This, the limit ribs 13 of 1 inner sidewall of ceramic shield is designed to protrude out to the edge of first structure of grid 67, to be formed
One barricade can stop a magnetic blow-out power on the right to draw electric arc as shown in figure 20 (arrow indicates magnetic blow-out power direction in figure)
To intermediate region.
Embodiment eight
Referring to fig. 2 shown in 1, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, not with embodiment six
It is with place, it is quiet close to the left side in two blocks of magnet steel 81 on the left side of the direction of current flow of movable contact spring in four blocks of magnet steel 81
The magnetic pole of the one side towards corresponding sound contact of the magnet steel 81 of 2 this side of contact is set as the pole S, close to the right static contact 2
The magnetic pole of the one side towards corresponding sound contact of the magnet steel 81 of this side is set as the pole N, in the electric current flowing side of movable contact spring
To the right two blocks of magnet steel 81 in, close to 2 this side of left side static contact magnet steel 81 towards corresponding sound contact
Magnetic pole on one side is set as the pole N, the one side towards corresponding sound contact of the magnet steel 81 of close 2 this side of the right static contact
Magnetic pole is set as the pole S；Four blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed such as arrow institute in Figure 21
Show the magnetic blow-out power in direction, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to the side of magnetic blow-out power
To being that will not generate interference between each other towards equidirectional obliquely downward.
Embodiment nine
Referring to fig. 2 shown in 2, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, not with embodiment one
It is with place, several blocks of magnet steel 81 are two blocks of magnet steel, and two blocks of magnet steel 81 are arranged respectively at the both ends of the length of movable contact spring 3
The outer position corresponding to sound contact, and the magnetic pole of the opposite one side of two blocks of magnet steel 81 is set as opposite；Two blocks of magnet steel
81 are also connected with two yoke folders 82, and it is dynamic that two yoke folders 82 also include at least corresponding to for the both sides for being in the width of movable contact spring 3
The yoke section 821 of the position of stationary contact；Two blocks of magnet steel 81 are arranged respectively at the position of face sound contact；As shown in figure 22,
In two blocks of magnet steel 81, the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of left side static contact
Magnetic pole be set as the pole N, the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of the right static contact
Magnetic pole be set as the pole S；In the present embodiment, two yokes folder 82 be it is U-shaped, the U-shaped bottom wall 822 of two yokes folders 82 respectively with
Two blocks of magnet steel 81 are opposite to be connected on one side, i.e. 82 one block of magnet steel 81 of connection of yoke folder, the U-shaped two sides of two yokes folder
The end of wall 823 is more than the position corresponding to sound contact on the both sides of the width of movable contact spring 3 respectively；Described two yoke folders 82
U-shaped two sidewalls 823 in include the yoke section 821；
In the present embodiment, two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 22
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is oblique outside, and one towards obliquely downward, one obliquely, interference will not be generated between each other.
The DC relay of the present embodiment loads no polar requirement, and forward and reverse arc extinguishing ability is suitable, works as Opposite direction connection
When, the direction of two magnetic blow-out power is oblique outside, will not be influenced each other.
Embodiment ten
Referring to fig. 2 shown in 3, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, not with embodiment nine
It is with place, the end of the U-shaped two sidewalls 823 of two yoke folders 82 respectively constitutes corresponding yoke section 821.
Two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can form the side as shown in arrow in Figure 23
To magnetic blow-out power.
Embodiment 11
Referring to fig. 2 shown in 4, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, not with embodiment nine
It is with place, the U-shaped bottom wall 824 of two yoke folders 82 fits in the both sides of the width of movable contact spring 3, two yoke folders respectively
The ends of U-shaped two sidewalls 825 be connected on one side with two pieces of the opposite of magnet steel 81 respectively.Being in for two yokes folder 82 is dynamic
The yoke section 821 of the position corresponding to sound contact on the both sides of the width of reed 3 is located at the U-shaped bottom of corresponding yoke folder 82
At wall 824.
Two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can form the side as shown in arrow in Figure 24
To magnetic blow-out power.
Embodiment 12
Referring to fig. 2 shown in 5, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, not with embodiment six
It is with place, several blocks of magnet steel 81 are two blocks of magnet steel, and two blocks of magnet steel 81 are arranged respectively at the both sides of the width of movable contact spring 3
The position corresponding to sound contact, and sound contact corresponding to two blocks of magnet steel 81 be it is not identical, i.e., one block of magnet steel corresponds to
This side of left side static contact 2, another block of magnet steel 81 correspond to this side of the right static contact 2；Two blocks of magnet steel 81 also connect respectively
A yoke folder 82 is connect, two yoke folders 82 are respectively L-type, and one side 821 of the L-type of yoke folder 82 is connected to corresponding magnet steel 81
The another side 822 of one side backwards to sound contact, the L-type of yoke folder 82 is in outside the both ends corresponding to the length of movable contact spring 3
Position；As shown in figure 25, in two blocks of magnet steel 81, one block of magnet steel 81 corresponding to 2 this side of left side static contact towards corresponding
The magnetic pole of one side of sound contact be set as the pole N, one block of magnet steel 81 corresponding to 2 this side of the right static contact towards corresponding
The magnetic pole of one side of sound contact be also set as the pole N, i.e., the magnetic pole of the one side towards sound contact of two blocks magnet steel 81 is set as phase
Together；
In the present embodiment, two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 25
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is oblique upside equidirectionally, will not generate interference between each other.
The DC relay of the present embodiment loads no polar requirement, and forward and reverse arc extinguishing ability is suitable, works as Opposite direction connection
When, the direction of two magnetic blow-out power is oblique downside equidirectionally, will not be influenced each other.
Embodiment 13
Referring to fig. 2 shown in 6, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, with embodiment 12
The difference is that in two blocks of magnet steel 81, one block of magnet steel 81 corresponding to 2 this side of left side static contact towards corresponding dynamic
The magnetic pole of the one side of stationary contact is set as the pole S, and one block of magnet steel 81 corresponding to 2 this side of the right static contact is moved towards corresponding
The magnetic pole of the one side of stationary contact is also set as the pole S.
In the present embodiment, two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 26
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carries out arc extinguishing processing to two pairs of sound contacts respectively, due to magnetic blow-out
The direction of power is oblique downside equidirectionally, will not generate interference between each other.
The DC relay of the present embodiment loads no polar requirement, and forward and reverse arc extinguishing ability is suitable, works as Opposite direction connection
When, the direction of two magnetic blow-out power is oblique upside equidirectionally, will not be influenced each other.
Embodiment 14
Referring to fig. 2 shown in 7, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, with embodiment 12
The difference is that the magnetic pole of the one side towards sound contact of two blocks of magnet steel is set as on the contrary, particularly, two blocks of magnet steel 81
In, the magnetic pole of the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of left side static contact is set as N
The magnetic pole of pole, the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of the right static contact is set as S
Pole.
In the present embodiment, two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 27
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carry out arc extinguishing processing, two magnetic blow-out to two pairs of sound contacts respectively
Power is towards outside, and obliquely, one, the right will not generate interference towards obliquely downward between each other on one, the left side.
The DC relay of the present embodiment, load polarized requirement, forward and reverse arc extinguishing capacity variance is larger, works as Opposite direction connection
When, inwards, towards obliquely downward, one, the right obliquely, can generate two magnetic blow-out power between two magnetic blow-out power on one, the left side
Certain interference.
Embodiment 15
Referring to fig. 2 shown in 8, a kind of DC relay carrying out arc extinguishing based on magnet steel of the invention, with embodiment 12
The difference is that the magnetic pole of the one side towards sound contact of two blocks of magnet steel is set as on the contrary, particularly, two blocks of magnet steel 81
In, the magnetic pole of the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of left side static contact is set as S
The magnetic pole of pole, the one side towards corresponding sound contact of one block of magnet steel 81 corresponding to 2 this side of the right static contact is set as N
Pole.
In the present embodiment, two blocks of magnet steel 81 and two yokes folder 82, which match, to be formed by magnetic field and can be formed as in Figure 28
The magnetic blow-out power in direction shown in arrow, the magnetic blow-out power of both direction carry out arc extinguishing processing, two magnetic blow-out to two pairs of sound contacts respectively
Inwards, towards obliquely downward, one, the right obliquely, can generate interference to power between each other on one, the left side.
The DC relay of the present embodiment, load polarized requirement, forward and reverse arc extinguishing capacity variance is larger, works as Opposite direction connection
When, two magnetic blow-out power are towards outside, and obliquely, one, the right will not be produced between two magnetic blow-out power towards obliquely downward on one, the left side
Raw interference.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Anyone skilled in the art is not taking off
In the case where from technical solution of the present invention range, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
Mostly possible changes and modifications, or it is revised as equivalents equivalent embodiment.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (24)
1. a kind of DC relay for carrying out arc extinguishing based on magnet steel, including ceramic shield, static contact, movable contact spring, yoke plate, metal frame
Piece, insulating base and several blocks of magnet steel；Ceramic shield is mutually fixed by the metalization layer of bottom end with metal frame piece, the bottom end of metal frame piece
It is mutually fixed with yoke plate；Two static contacts are separately fixed at the top of ceramic shield and stationary contact set by its bottom end are made to be contained in pottery
In the cavity of porcelain cover；Movable contact spring is straight piece type, and movable contact set by the both ends of movable contact spring is respectively fitting into two in the cavity
Below a static contact；It is characterized by: several blocks of magnet steel are arranged respectively at the side corresponding to sound contact of movable contact spring
At position, arc extinguishing is realized to be formed by magnetic field using magnet steel；The insulating base on the yoke plate, in the edge of insulating base to
On protrude out equipped with wall, the edge of insulating base be additionally provided with it is being protruded out to horizontal direction and around entire periphery saddle, insulating base
Saddle cooperate under the bottom end of ceramic shield；The groove around entire periphery is additionally provided on the table top of the saddle of insulating base, it is recessed
The sealing ring of an elastically deformable is embedded in slot, to allow sealing ring to be deformed when the bottom face of ceramic shield presses to sealing ring,
Bottom face of the deformed part of sealing ring respectively along gap and ceramic shield between the inner wall of ceramic shield and the wall of insulating base
Gap between the saddle of insulating base extends, so as to obstruct gold due to magnet steel carries out arc extinguishing in the attachment of ceramic shield inner wall
The metal for belonging to splash and ceramic shield bottom face forms metal pathway.
2. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: several blocks of magnetic
Steel is four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at the position corresponding to sound contact on the both sides of the width of movable contact spring, and right
The magnetic pole of the one side towards sound contact of two blocks of magnet steel of Ying Yutong a pair of sound contact is set as on the contrary, and corresponding to movable contact spring
Width with the magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel on one side be set as identical, it is same corresponding to
Yoke folder is also connected between two blocks of magnet steel of a pair of of sound contact；Four blocks of magnet steel are arranged respectively at face sound contact
At position.
3. the DC relay according to claim 2 for carrying out arc extinguishing based on magnet steel, it is characterised in that: four blocks of magnet steel
In, the magnetic of the one side towards corresponding sound contact of two blocks of magnet steel on the left side of the direction of current flow corresponding to movable contact spring
Pole is set as the pole N.
4. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: several blocks of magnetic
Steel is four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at the position corresponding to sound contact on the both sides of the width of movable contact spring,
And correspond to and be set as identical with the magnetic pole of the one side towards sound contact of two blocks of magnet steel of a pair of of sound contact, it is same corresponding to
Yoke folder is also connected between two blocks of magnet steel of a pair of of sound contact；Four blocks of magnet steel are arranged respectively at face sound contact
At position.
5. the DC relay according to claim 4 for carrying out arc extinguishing based on magnet steel, it is characterised in that: four blocks of magnet steel
In, the magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel on same one side of the width corresponding to movable contact spring is set as
It is identical.
6. the DC relay according to claim 4 for carrying out arc extinguishing based on magnet steel, it is characterised in that: four blocks of magnet steel
In, the magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel on same one side of the width corresponding to movable contact spring is set as
On the contrary.
7. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: several blocks of magnetic
Steel is four blocks of magnet steel, and four blocks of magnet steel are arranged respectively at the position corresponding to sound contact on the both sides of the width of movable contact spring,
And the magnetic pole for corresponding to the one side towards sound contact of two blocks of magnet steel of same a pair of of sound contact is set as on the contrary, and corresponding to dynamic
The magnetic pole of the one side towards corresponding sound contact of two blocks of magnet steel on same one side of the width of reed is also set as on the contrary, right
Yoke folder is also connected between two blocks of magnet steel of Ying Yutong a pair of sound contact.
8. the DC relay according to claim 7 for carrying out arc extinguishing based on magnet steel, it is characterised in that: described to correspond to together
Two blocks of magnet steel of a pair of of sound contact are to be located at relative to the offset position with a pair of of sound contact, and two blocks of magnet steel are
It is dislocatedly distributed.
9. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: several blocks of magnetic
Steel is two blocks of magnet steel, the position corresponding to sound contact outside the both ends for the length that two blocks of magnet steel are arranged respectively at movable contact spring, and
The magnetic pole of the opposite one side of two blocks of magnet steel is set as opposite；Two blocks of magnet steel are also connected with two yoke folders, and two yoke folders are also
Including at least the yoke section of the position corresponding to sound contact on the both sides for the width for being in movable contact spring；Two blocks of magnet steel difference
Configuration is at the position of face sound contact.
10. the DC relay according to claim 9 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the yoke folder
To be U-shaped, the U-shaped bottom wall of two yokes folder is opposite with two blocks of magnet steel respectively to be connected on one side, U-shaped two that two yokes press from both sides
The end of side wall respectively constitutes corresponding yoke section.
11. the DC relay according to claim 9 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the yoke folder
To be U-shaped, the U-shaped bottom wall of two yokes folder is opposite with two blocks of magnet steel respectively to be connected on one side, U-shaped two that two yokes press from both sides
The end of side wall is more than the position corresponding to sound contact on the both sides of the width of movable contact spring respectively；The U of described two yoke folders
It include the yoke section in the two sidewalls of type.
12. the DC relay according to claim 9 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the yoke folder
To be U-shaped, the U-shaped bottom wall of two yokes folder fits in the both sides of the width of movable contact spring, the U-shaped two sides of two yokes folder respectively
The end of wall is connected with two pieces of the opposite of magnet steel on one side respectively.
13. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: described several pieces
Magnet steel is two blocks of magnet steel, and two blocks of magnet steel are arranged respectively at the position corresponding to sound contact on the both sides of the width of movable contact spring
It sets, and sound contact corresponding to two blocks of magnet steel is not identical；Two blocks of magnet steel are also respectively connected with a yoke folder, two yokes
Iron clamp is respectively L-type, the one side backwards to sound contact for being connected to corresponding magnet steel on one side of the L-type of yoke folder, the L-type of yoke folder
Another side be in the position outside the both ends corresponding to the length of movable contact spring；Two blocks of magnet steel are arranged respectively at the touching of face sound
At the position of point.
14. the DC relay according to claim 13 for carrying out arc extinguishing based on magnet steel, it is characterised in that: two blocks of magnetic
The magnetic pole of the one side towards sound contact of steel is set as identical.
15. the DC relay according to claim 13 for carrying out arc extinguishing based on magnet steel, it is characterised in that: two blocks of magnetic
The magnetic pole of the one side towards sound contact of steel is set as opposite.
16. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the sealing ring
The long groove for being slightly less than insulating base of circle circle it is long so that sealing ring elasticity is stretched in the groove.
17. the DC relay according to claim 1 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the insulating base
It further include bottom plate, the wall is located in the edge of bottom plate, to surround an arc extinguishing cavity by the wall and bottom plate, and allows stationary contact
Head and projection of the movable contact spring on insulating base are in the arc extinguishing cavity.
18. the DC relay according to claim 17 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the wall is
Full packet shape, the wall are surrounded on the entire periphery of insulating base.
19. the DC relay according to claim 17 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the wall is
Two and half packet shapes, two sections of walls of half packet shape are in the outer of the projected position of two ends corresponding to movable contact spring respectively
Side.
20. the DC relay according to claim 17 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the spark chamber
Structure of grid is additionally provided in body, to increase arc extinguishing size and creepage distance.
21. the DC relay according to claim 20 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the spark chamber
Structure of grid in body includes the first structure of grid for being in the outer of the projected position at the both ends corresponding to movable contact spring, described
The height of first structure of grid is greater than the height of the wall.
22. the DC relay according to claim 21 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the first grid
The top of structure close to movable contact spring corresponding end edge, and the first structure of grid is half packet shape.
23. the DC relay according to claim 21 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the spark chamber
Structure of grid in body further includes the second structure of grid being between first structure of grid and the wall, the second grizzly bar
The length direction of structure approximately along the movable contact spring is arranged, and the height of second structure of grid and the height of the wall are big
It causes identical.
24. the DC relay according to claim 21 for carrying out arc extinguishing based on magnet steel, it is characterised in that: the ceramic shield
In, at the position of inner sidewall, the both sides of the length direction corresponding to movable contact spring are respectively equipped with for limiting movable contact spring upper and lower
The limit ribs deviated in motion process to the both sides of width, the limit ribs protrude out to the edge of first structure of grid
Place, to be used to stop electric arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734447.4A CN110473744A (en) | 2019-08-09 | 2019-08-09 | A kind of DC relay carrying out arc extinguishing based on magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734447.4A CN110473744A (en) | 2019-08-09 | 2019-08-09 | A kind of DC relay carrying out arc extinguishing based on magnet steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110473744A true CN110473744A (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910734447.4A Pending CN110473744A (en) | 2019-08-09 | 2019-08-09 | A kind of DC relay carrying out arc extinguishing based on magnet steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111933488A (en) * | 2020-06-24 | 2020-11-13 | 华为技术有限公司 | Movable contact structure and contactor |
| JP7488916B2 (en) | 2020-06-09 | 2024-05-22 | ビーワイディー カンパニー リミテッド | relay |
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| JP2019117809A (en) * | 2019-04-24 | 2019-07-18 | パナソニックＩｐマネジメント株式会社 | Contact arrangement and electromagnetic relay |
| CN210091999U (en) * | 2019-08-09 | 2020-02-18 | 厦门宏发电力电器有限公司 | Direct current relay based on magnetic steel carries out arc extinguishing |
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| CN206179787U (en) * | 2016-12-05 | 2017-05-17 | 浙江英洛华新能源科技有限公司 | High -voltage direct -current relay seal structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7488916B2 (en) | 2020-06-09 | 2024-05-22 | ビーワイディー カンパニー リミテッド | relay |
| CN111933488A (en) * | 2020-06-24 | 2020-11-13 | 华为技术有限公司 | Movable contact structure and contactor |
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